01-30-2013
The first thing I notice is that you do "while [ $result ]", but haven't set $result anywhere - is this present in your environment?
Also, the body of the while[$result] doesn't modify $result, so it will loop forever if $result is true on entry.
10 More Discussions You Might Find Interesting
1. Shell Programming and Scripting
Hi ,
I am currently using the while loop in bash shell, as follows.
while read line
do
echo $line
done < file.txt
However, i want to use the while loop on file.txt, which will read the file with 4 lines of gap.
Ex- if file.txt is a file of 100 lines, then i want to use the loop such... (3 Replies)
Discussion started by: jitendriya.dash
3 Replies
2. Shell Programming and Scripting
I'm trying to understand if it's possible to create a set of variables that are numbered based on another variable (using eval) in a loop, and then call on it before the loop ends.
As an example I've written a script called question (The fist command is to show what is the contents of the... (2 Replies)
Discussion started by: DeCoTwc
2 Replies
3. Shell Programming and Scripting
I'm trying to export a mysql query to a .csv file, right now I'm running a successful query like:
us_id=`mysql -u $USER_NAME --password=$PASSWORD -D "databasename" \
-e "SELECT * \
FROM databasename.table \
WHERE somefield >0 AND otherfield ='$ctry' \
ORDER BY... (1 Reply)
Discussion started by: unclecameron
1 Replies
4. UNIX and Linux Applications
After doing a yum install mysql mysql-server on Fedora 14 I wasn't able to fully install the packages correctly. It installed MySQL 5.1. I was getting the following error when running the:
mysql
ERROR 2002 (HY000): Can't connect to local MySQL server through socket '/var/lib/mysql/mysql.sock' (2)... (3 Replies)
Discussion started by: jastanle84
3 Replies
5. Shell Programming and Scripting
Hi,
I have a loop running until a variable L that is read previously in the full script. I'd like to grep some information in an input file at a line that contains the value of the loop parameter $i.
I've tried to use grep, but the problem is nothing is written in the FILE files. It seems grep... (5 Replies)
Discussion started by: DMini
5 Replies
6. Shell Programming and Scripting
Dear mentors, I just need little explanation regarding for loop to give input to awk script
for file in `ls *.txt |sort -t"_" -k2n,2`; do
awk script $file
done
which sorts file in order, and will input one after another file in order to awk script
suppose if I have to input 2 or... (4 Replies)
Discussion started by: Akshay Hegde
4 Replies
7. Shell Programming and Scripting
In the bash when the user inputs an id to search for the bash currently closes, and if a match is found outputs a new file (match.txt). Is it possible to have not close the bash but rather, on the screen "searching for match" and if a match is found "match found in line.." is displayed... (3 Replies)
Discussion started by: cmccabe
3 Replies
8. Shell Programming and Scripting
Is there a way to use a directory with multiple files (.bam) to create one new file? The below bash loop will create a new file (header.sam) for each of the bam files. However, I only need to use 1 of the bam file to make 1 header file. I attempted a code as well, but not sure if thats... (5 Replies)
Discussion started by: cmccabe
5 Replies
9. UNIX for Beginners Questions & Answers
HI
I have a dsv file that looks like:
<<BOF>>
record_number|id_number|first name|last name|msisdn|network|points|card number|gender
312|9101011234011|Test Junior|Smith|071 123 4321|MTN|73|1241551413214444|M
313|9012023213011|Bob|Smith|27743334321|Vodacom|3|1231233232323244|M... (4 Replies)
Discussion started by: tera
4 Replies
10. UNIX for Beginners Questions & Answers
Cope sample1: test.sh
i=0
echo " Outside loop i = $i "
while
do
i=$(( $i + 1))
echo "Inside loop i = $i "
done
echo " Out of loop i is : $i "
When run output :
Outside loop i = 0
Inside loop i = 1
Inside loop i = 2
Inside loop i = 3
Inside loop i = 4
Inside loop i = 5
Inside... (8 Replies)
Discussion started by: Adarshreddy01
8 Replies
LEARN ABOUT CENTOS
pmdamysql
PMDAMYSQL(1) Performance Co-Pilot PMDAMYSQL(1)
NAME
pmdamysql - MySQL database PMDA
DESCRIPTION
pmdamysql is a Performance Co-Pilot PMDA which extracts live performance data from a running MySQL database.
INSTALLATION
pmdamysql uses a configuration file from (in this order):
o /etc/pcpdbi.conf
o $PCP_PMDAS_DIR/mysql/mysql.conf
This file can contain overridden values (Perl code) for the settings listed at the start of pmdamysql.pl, namely:
o database name (see DBI(3) for details)
o database user name
o database pass word
Once this is setup, you can access the names and values for the mysql performance metrics by doing the following as root:
# cd $PCP_PMDAS_DIR/mysql
# ./Install
If you want to undo the installation, do the following as root:
# cd $PCP_PMDAS_DIR/mysql
# ./Remove
pmdamysql is launched by pmcd(1) and should never be executed directly. The Install and Remove scripts notify pmcd(1) when the agent is
installed or removed.
Binary Status values in text
Some of the status values are in the form of YES/NO or ON/OFF.
Since these cannot be intepreted by tools like PMIE, they have been duplicated with a _num extension and the values of 1 (YES/ON) or 0
(NO/OFF).
Eg:
o mysql.slave_status.slave_io_running
o mysql.slave_status.slave_io_running_num
FILES
/etc/pcpdbi.conf
configuration file for all PCP database monitors
$PCP_PMDAS_DIR/mysql/mysql.conf
configuration file for pmdamysql
$PCP_PMDAS_DIR/mysql/Install
installation script for the pmdamysql agent
$PCP_PMDAS_DIR/mysql/Remove
undo installation script for the pmdamysql agent
$PCP_LOG_DIR/pmcd/mysql.log
default log file for error messages from pmdamysql
SEE ALSO
pmcd(1), pmdadbping.pl(1) and DBI(3). # vi: sw=4 ts=4 et:
3.8.10 Performance Co-Pilot PMDAMYSQL(1)